Merge branch 'prepare-1.9' into 'master'

Prepare 1.9

See merge request !137
3 jobs for master in 28 minutes and 55 seconds (queued for 1 second)
Status Job ID Name Coverage
  Build
passed #49344
linux
build-linux

00:18:28

passed #49345
win
build-win

00:28:55

 
  Deploy
manual #49346
conda linux allowed to fail manual
deploy-devel